updates for msdos cross-compile

gcc 12.1.0 also incorporate a libc patch for djgpp
2022-06-21 03:15:25 -04:00
parent 4944338a73
commit 0085cd9e8c
4 changed files with 47 additions and 3 deletions
--- a/sys/msdos/exceptn.S.patch
+++ b/sys/msdos/exceptn.S.patch
@@ -0,0 +1,20 @@
+source https://www.vogons.org/viewtopic.php?f=61&t=71459
+--- orig/src/libc/go32/exceptn.S        2002-12-21 21:08:39.000000000 -0800
+++ ./src/libc/go32/exceptn.S 2020-01-18 18:37:27.397176800 -0800
+@@ -337,6 +337,15 @@
+        je      6f
+        orb     $2,%ah  /* If RShift is set, set LShift as well */
+ 6:
+        movb    %ah,%al
+       andb    %cs:___djgpp_sigint_mask, %ah   /* Mask off irrelevant bits */
+       cmpb    %cs:___djgpp_sigint_key+1, %ah  /* Test for SIGINT */
+        je      60f
+        movb    %al,%ah
+       andb    %cs:___djgpp_sigquit_mask, %ah  /* Mask off irrelevant bits */
+       cmpb    %cs:___djgpp_sigquit_key+1, %ah /* Test for SIGQUIT*/
+       jne     Lkbd_chain
+60:
+        inb     $0x60,%al                       /* Read the scan code */
+ 99:
+        movb    %ah,%bh                         /* Save KB status */
+